docs: def _import_serializer_class(self, location):
          """
          Resolves a dot-notation string to serializer class.
          <app>.<SerializerName> will automatically be interpreted as:
          <app>.serializers.<SerializerName>
          """
          pieces = location.split(".")
          class_name = pieces.pop()
  
          if pieces[len(pieces) - 1] != "serializers":
              pieces.append("serializers")
  
          module = importlib.import_module(".".join(pieces))
          return getattr(module, class_name)